In these environments, it is desirable to create low sound levels in order to reduce stress and invoke calm. Where possible, a class A ceiling should be supplemented with wall absorbers.

In dining rooms, sound-absorbing and sound-proofing screens can be used between groups of tables. For screens to give a good effect, it is important that the ceiling has as good absorption as possible.

Class A ceilings in corridors result in a more uniform sound environment by reducing the acoustic difference between adjacent, acoustically treated areas. This contributes to a calmer environment and less disturbance of adjacent areas.